JavaScript Open Source Award
We celebrate community success and highlight the most impactful Open Source projects of the recent year.
Next ceremony
JSNation Conference
The biggest JavaScript conference will host its 7th annual edition of the JS Open Source awards.
June 11, 2026
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Valdi
Valdi is a cross-platform UI framework that delivers native performance without sacrificing developer velocity
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Ripple
Elegant typescript UI framework. No virtual DOM, built on TSRX
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TanStack Start
TanStack Start is a full-stack React framework powered by TanStack Router. It provides a full-document SSR, streaming, server functions, bundling, and more.
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TanStack DB
TanStack DB gives you a reactive, client-first store for your API data with collections, live queries and optimistic mutations that keep your UI reactive, consistent and blazing fast
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ForesightJS
github.com/spaansba/ForesightJS
ForesightJS is a framework-agnostic library for predicting user intent based on cursor trajectory and keyboard/scroll navigation.
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TypeGPU
github.com/software-mansion/TypeGPU
A modular and open-ended toolkit for WebGPU, featuring advanced type inference and the ability to write shaders in TypeScript.
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Blazediff
github.com/teimurjan/blazediff
BlazeDiff is a high-performance image diffing toolkit for visual regression testing, combining the fastest pure-JS core with optional Rust/N-API acceleration, validated SSIM/GMSD metrics, and ready-to-use matchers for Jest, Vitest, and Bun.
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Es-toolkit
es-toolkit is a state-of-the-art JavaScript utility library with a small bundle size and high performance. It offers modern implementations of everyday functions, taking full advantage of the latest TypeScript features
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Biome
Biome is a fast, community-led linter and formatter that helps you learn best practices and improve the quality of your JavaScript, TypeScript, CSS, HTML, and framework usage.
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Codemod
Give your agents compiler-aware tools for fast, reliable code analysis and transformation.
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Rstest
github.com/web-infra-dev/rstest
Rstest is the testing framework powered by Rspack. A drop-in replacement for Jest, with shared bundler config and lightning-fast runs.
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Sparo
Keeps Git fast in your TypeScript monorepo as projects and history grow. A battle tested drop-in replacement for the Git CLI.
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Midscene
github.com/web-infra-dev/midscene
Midscene.js is a vision-driven UI automation framework that supports web, Android, and iOS platforms, providing rich APIs and developer tools for building automation workflows.
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Infographic
AntV Infographic is AntV's next-generation declarative infographic visualization engine. With a carefully designed infographic syntax, it quickly and flexibly renders high-quality infographics, making information presentation more efficient and data storytelling simpler.
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TanStack AI
A powerful, open-source AI SDK with a unified interface across multiple providers. No vendor lock-in, no proprietary formats, just clean TypeScript and honest open source.
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Rscexplorer
github.com/gaearon/rscexplorer
RSC Explorer lets you inspect the React Server Components stream step by step and observe the React tree that is being streamed at every step. It also hosts some examples that showcase how React Server and Client features can interplay.
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Popcorn
github.com/software-mansion/popcorn
Popcorn: Running Elixir code in the browser with WASM
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Tailwindsql
github.com/mmarinovic/tailwindsql
TailwindSQL lets you write SQL queries using Tailwind-style class names. Just use className to query your database directly in React Server Components!
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Pretext
Pure JavaScript/TypeScript library for multiline text measurement & layout. Fast, accurate & supports all the languages you didn't even know about. Allows rendering to DOM, Canvas, SVG and soon, server-side.